<template>
  <div>
    <!-- 导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图 -->
    <el-card>

      <!-- 搜索添加区域 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" @clear="getUserList" clearable>
            <el-button slot="append" icon="el-icon-search" @click="getUserList">
            </el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
        </el-col>
      </el-row>
      <!-- 用户列表 -->
      <el-table :data="userlist" stripe border>
        <el-table-column type="index"></el-table-column>
        <el-table-column prop="username" label="姓名"></el-table-column>
        <el-table-column prop="email" label="邮箱"></el-table-column>
        <el-table-column prop="mobile" label="电话"></el-table-column>
        <el-table-column prop="role_name" label="角色"></el-table-column>
        <el-table-column prop="mg_state" label="状态">
          <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" @change="userStateChange(scope.row)"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
            <el-button type="danger" icon="el-icon-delete" size="mini"
                       @click="removeUserById(scope.row.id)"></el-button>
            <el-tooltip class="item" effect="dark" content="分配角色" placement="top">
              <el-button type="warning" icon="el-icon-share" size="mini"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange"
                     :current-page="queryInfo.pagenum" :page-sizes="[1,2,5,10]" :page-size="queryInfo.pagesize"
                     :total="total"
                     layout="total, sizes, prev, pager, next, jumper">
      </el-pagination>
    </el-card>

    <!-- 添加用户对话框 -->
    <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%">
      <!-- 表单内容 -->
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="100px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改用户对话框 -->
    <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%" @close="editDialogClose">
      <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    var checkEmail = (rule, value, callback) => {
      var regEmail = /^[a-zA-Z0-9]+([-_.][a-zA-Z0-9]+)*@[a-zA-Z0-9]+([-_.][a-zA-Z0-9]+)*\.[a-z]{2,}$/
      if (regEmail.test(value)) {
        return callback()
      }
      callback(new Error('请输入合法邮箱'))
    }

    var checkMobile = (rule, value, callback) => {
      var mobileReg = /^1[34578]\d{9}$/;
      if (mobileReg.test(value)) {
        return callback()
      }
      callback(new Error('请输入正确手机号'))
    }

    return {

      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 2
      },

      userlist: [],
      total: 0,
      dialogVisible: false,

      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''

      },

      addFormRules: {
        username: [{
          required: true,
          message: '请输入用户名',
          trigger: 'blur'
        },
        {
          min: 3,
          max: 10,
          message: '长度在 3 到 10 个字符',
          trigger: 'blur'
        }
        ],
        password: [{
          required: true,
          message: '请输入密码',
          trigger: 'blur'
        },
        {
          min: 6,
          max: 15,
          message: '长度在 6 到 15 个字符',
          trigger: 'blur'
        }
        ],
        email: [{
          required: true,
          message: '请输入邮箱',
          trigger: 'blur'
        },
        {
          validator: checkEmail,
          trigger: 'blur'
        }
        ],
        mobile: [{
          required: true,
          message: '请输入手机号',
          trigger: 'blur'
        },
        {
          validator: checkMobile,
          trigger: 'blur'
        }
        ]
      },

      addDialogVisible: false,

      editDialogVisible: false,

      editForm: {},

      editFormRules: {
        email: [{
          required: true,
          message: '请输入邮箱',
          trigger: 'blur'
        },
        {
          validator: checkEmail,
          trigger: 'blur'
        }
        ],
        mobile: [{
          required: true,
          message: '请输入手机号',
          trigger: 'blur'
        },
        {
          validator: checkMobile,
          trigger: 'blur'
        }
        ]
      }
    }
  },

  mounted() {
    this.getUserList()
  },

  methods: {
    async getUserList() {
      const {
        data: res
      } = await this.$http.get('users', {
        params: this.queryInfo
      })
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户列表失败')
      }
      this.userlist = res.data.users
      this.total = res.data.total
    },

    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },

    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },

    async userStateChange(userinfo) {
      const {
        data: res
      } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      )
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('更新状态失败')
      }
      this.$message.success('更新状态成功')
    },

    dialogClosed() {
      this.$refs.addFormRef.resetFields()
    },

    addUser() {
      // 提交请求前，表单预验证
      this.$refs.addFormRef.validate(async valid => {
        // console.log(valid)
        // 表单预校验失败
        if (!valid) return
        const {
          data: res
        } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) {
          this.$message.error('添加用户失败！')
        }
        this.$message.success('添加用户成功！')
        // 隐藏添加用户对话框
        this.addDialogVisible = false
        await this.getUserList()
      })
    },

    async showEditDialog(id) {
      const {
        data: res
      } = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('查询用户信息失败！')
      }
      this.editForm = res.data
      this.editDialogVisible = true
    },

    editDialogClose() {
      // eslint-disable-next-line no-unused-expressions
      this.$refs.editFormRef.resetFields
    },

    editUserInfo() {
      // 提交请求前，表单预验证
      this.$refs.editFormRef.validate(async valid => {
        // console.log(valid)
        // 表单预校验失败
        if (!valid) return
        const {
          data: res
        } = await this.$http.put(
          'users/' + this.editForm.id, {
            email: this.editForm.email,
            mobile: this.editForm.mobile
          }
        )
        if (res.meta.status !== 200) {
          this.$message.error('更新用户信息失败！')
        }
        // 隐藏添加用户对话框
        this.editDialogVisible = false
        this.$message.success('更新用户信息成功！')
        await this.getUserList()
      })
    },

    // 删除用户
    async removeUserById(id) {
      const confirmResult = await this.$confirm(
        '此操作将永久删除该用户, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }
      ).catch(err => err)
      // 点击确定 返回值为：confirm
      // 点击取消 返回值为： cancel
      if (confirmResult !== 'confirm') {
        return this.$message.info('已取消删除')
      }
      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) return this.$message.error('删除用户失败！')
      this.$message.success('删除用户成功！')
      await this.getUserList()
    },
    // 展示分配角色的对话框
    async showSetRole(role) {
      this.userInfo = role
      // 展示对话框之前，获取所有角色列表
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色列表失败！')
      }
      this.rolesLsit = res.data
      this.setRoleDialogVisible = true
    }
  }
}

</script>

<style lang="less" scoped>
</style>
